Use
#import <AVFoundation/AVFoundation.h>
There is only two types of #import
statements:
#import <file.h>
and
#import "file.h"
There is no type like : #import "<file.h>"
you are making mistake here: #import "<AVFoundation/AVFoundation.h>"
In general the #import "QuartzCore/QuartzCore.h" form is "find my very own header, if you can't find it look for a system header", and the form is "find a system header". In theory the locations are compiler defined and they could be implemented differently on a given platform, but I haven't run into a C compiler that does anything different.
Reference: SO